Apparatus for making oxygen.



G. VON AGH. APPARATUS FOR MAKING OXYGEN. AYPLIOATION FILED JULY 20,1909.

Patented De0.28,1909.

2 SHEETS-SHEET 1.

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INVENTOR G. VON AGH. APPARATUS FOR MAKING OXYGEN. APPLICATION FILED ULY20, 1909.

" 944,473, Patented Dec.28,1909.

2 SHEETS-SHEET 2 'ILQOOOOOOOOOOOOOOOO WITNESSES: I t I a F l ceptacle 11GEORGE VON ACH, F NEWARK, NEW JERSEY.

APPARATUS FOR MAKING OXYGEN.

Specification of Letters Patent. Patented D 28, 1909,

Application filed July 20, 1909. Serial No. 508,616.

To all whom it may concern:

Be it known that I, GEORGE VON AoH, a citizen of the. United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Improvements in Apparatus for MakinOxygen; and I do hereby declare the fol owing to be a full, clear, andexact description of the invention, such'as. will enable others skilledin the art to which it appertains to make and use the same, referenceeing had to the accompanying drawings, and to figures of referencemarked thereon, which form a part of this specification.

This invention relates to an improved apparatus for Withdrawing theoxygen from the air and delivering it into suitable storage tanks or'receptacles.

Theapparatus is designed to be made so that it can'be usedby a physicianto manufacture his own oxygen supply, and it can be installediinhospitals and the like to provide a quick and simple means of securingoxv en when needed.

T e device embodies further a furnace in 'which the air is heated beforeit is purified and is again heated to withdraw the oxygen therefrom, theexcess heat from the burners in the furnace heating the air on its wayto the urifying apparatus.

'1 1e invention is illustrated in the accompanying drawings, in which-Figure 1 is a diagrammatic view of the apparatus, and Fig. 2 is asection of the furnace taken on line 2,2, in Fig. 1. F ig- 3 is a topView of one form of retort employed in the-ap aratus. Fig. l is asection of a modified firm of retort, and Fig. 5 is an elevation partlyin section illustrating" another arrangement of the retort and pipecoils which are used in conjunction therewith.

Theinlet pipe takes the air from any; point 'where it is desirable toinstall the pipe and conducts it to a cylindrical heater or rewhich isinstalled at the top and on the inside of a furnace 12 which will bedescribed hereinafter, and the receptacle 11 receives the excess heat.-from burners 13 which may be "of any usual construction, butarepreferably gas burners. After. being heated the air passes from' thereceptacle 11 to a pipe 14 down which it passes, passing a valve 15 andinto a box or similar structure -'16 which box is either made up of orlined .w'th sheet iron and contains lime- The box isair tight and themoisture in the air is from which it absorbed by the lime, the bestarrangement. being as shown in Fig. 1 with the pipe'14= passing to nearthe bottom of the box 16, the air being conducted from the box 16 by apipe 17 which in turn leads to near the bottom of a holder '18. Theholder 18 contains caustic soda and on this account is usually linedwith lead. The pipe 19 conducts the air, which is now nearly purified tothe proper degree of purity, and leads it into the pipe 20 throughvalves 45 and 741 passes into the pipe 21 which. is connected to thepump 21 which is a. pressure and vacuum pump, according to the desire ofthe operator, and is used to draw the air through the receptacle 11 andthe connectin pipes and through the box 16 and the holder 18, andthenpass it out through the pipe 22 into a reservoir 23, the pipe 22 beingprovided with'a valve 24, the uses of which will be describedhereinafter.

The reservoir 23 has a gage 25 thereon and has an outlet pipe providedwith a pressure regulator 26, which regulator permits the air passinginto the remainder of the system to have a predetermined pressure, andit has been found that the most satisfactory pressure is about seventeenpounds. The air then passes into a tube 27 which I fill withsponges tofurther dry theair and to prevent oil from the pump from beingtransmitted, and then through the pipe 28 into the cylinder or similarstructure 29 which is in turn provided with a pressure gage 30 and isadapted to be filled with lime. A pipe 31, provided with a valve 32,then conducts the air from the cylinder 29 to a regulator 33 similar tothe regulator 26. A pipe 34 then conducts the "air to the retorts whichare in the furnace below the receptacle 11 and passes along in the shapeof a larger pipe 35 and then is passed back and forth, horizontally inthe furnace, to form a coil 36, which coil is red hot, when the deviceis in operation, and will heat the air to a very high temperature. Theair is thus well heated for its passage through the pipe 37 into thevessel 38, which vessel will bev described more in' detail hereinafter,and. is desi ned to provide a receptacle for barium oxid or a similarsubstance or substances which are adaptedto draw the oxygen from the airand absorb it when'the air and the 'material are heated. The. vessel isred hot from the flames of the burners 13 and the absorption of theoxygen permits the nitrogen to pass out through the pipe'42, past thevalve 39 and. escapethrough the'check valve 41 from which it eitherpasses into the atmosphere or can be retained in a suitable receptacle,-A pressure gage 40 keeps the operator posted on the pressure in the coiland the vessel in the furnace.-

When 'suflicient oxygen is retained or ab sorbed by the barium oxid inthe vessel 38,

the valve 37 is closed, th'us shutting off the I vessel from thecoils-in the furnace, The

gen

pump 2l 'is now used to draw the oxy from the vessel 38, thepi e takingtheoxygen from the pipe 42 t rough the valve 44'which has been opened,having been previously shut, the valve 45 in turn being shut after beingopened in thepreviously 'de scribed operation. In emerging from: the

pump, the oxygen, instead of passing through the pipe 22, takes anotherchannel, because the valve 24 is closed and the oxygen is forced througha pipe 43 either into. the pipe 46 to a suitable gasometer 47',- or

. through the pipe 48 into a tank 49 where it.

is stored and by means of which it can, be transported whentransportation is necessary, the tank 49 being ,any of the usualcommercial tanks now employed for this purose. p The vessel 38 which isplaced underneath the pipes as shown in Fig. 2 is preferably made ofboiler iron or a suitable metal that is adapted to withstand thevariations in Y temperature towhich the vessel is rangedon opposite endsof the vessel, and

subjected, and is formed preferably oblong, andin oross-section iselliptical. The vessel is disposed in the furnace so that the heat canpass around the sides thereof and is pro vided with sleeves or shortpipes 53 which form flues which permit a more ready and A completeheating of'the vessel. To prevent collapsing or buckling of the vesselwhen under pressure or vacuum and heat at the the. insertion of bariumoxid .or similar chemical to the vessel, the formation of the vesselpermitting a thorough heating of the oxid and forming the means forwithdrawing the oxygen from the air. The pipe connections for the pipes37 and42 are arpreferably on opposite sides, so that the air iscompelled to pass over the whole body of the barium oxidv before itissues from the vessel.

A- suitable inlet 52 is provided for the ,installation and insertion ofa pyrometer which is shown installed in Fig. 1, the pyromregulationseter 66 being provided with the usual fiexi ble connection 67 which inturn is connected to al. lndicatorfifi whereby the heat in the I vessel.can be determined tope'rmit of ts When the oxygen is being drawn fromthe vessel, through the pipe42, tbs gage 40 is shut 01f from inea nso fits valve-the check valve 41 automatiealiy closes, eenne'ctee- "to thepipe by having its valve opened, ih "this v'va'ythe vacuum can bedetermined.

thepipe' by and the vacuum gage 65 is If desired, I may make theves'sel38 as shown in Fig. 4, being made in halves which are provided with theflanges, 56, these flanges being riveted closely together to form an airtight closure, the vessel being connected from side to side by suitabletie-rods or bolts 55, In 5 I illustrate a modified form of'arrangmg the;vessel and the pipes in a furnace, the furnace 68 being provided at itsbottom with any kind of gas, V

or other burner 64, and between but above the burnersis arranged a'vessel 57 similar to tie vessel 38 of the previous structure, the

vessel. 57 bein adapted to receive barium mud or a sum ar substance.-From a. pipe 58 air is fed from a coil of pipe 59 between I which andone wall of the vessel'57 a flue is formed, the coil 59 being fedby apipe 60 which leads-from another coil 61 on the opposite sideof thevessel 57 from the coil 59, thereby forming anotherflue. The coil 61receives its supply from the usual purify-' ing apparatus. A pipe 62 isadapted to lead 1 the oxygen from the vessel 57 As shown in Fig. 1.1may, if desired, i11- v stall a pipe 69 leading into the pipe 34, whichpipe 69 leads-froma suitable boiler or source of steam supply and-isdesigned to inject steam along with theair when sodium;

manganate is used in the vessel instead of barium oxid.v

When oxygen has been stored in the gammaeter, and it is desiredto,place-it into the receptacle 49, the valve 74 in pipe '19 is closedand the valve 44 is closed, but valves 45 and 7 3 are open, and in thisway oxygen can be p the pipes 72, 19'and 20 and through the and theoxygen-passes through the pipe 48 and the Valve into the receptacle 49.

pumped from the gasometer-through This apparatus is positive in itsopera-' tion, issimple to manage, and is adapted. to

pacity for its size.

. Having thus described my invention, what lcl'aim 1s: I I g? Anapparatus for extracting from air comprising a furnace, a vessljil thefurnace containing material to absorb oxygen, a purifying apparatus, apump, connections between the pump and the vessel,

r connections between the pump and the purify- 5 4 pump into-thev pipe43. The Valve 71 is shut:

12(; provide an apparatus that has a good caing apparatus, pipeconnections from the vessel to the purifying apparatus, a tank forreceivingoxygen, connections from the pump to the tank, and means forconducting air from the atmosphere to the purifying apparatus, the saidconducting means passing through the furnace for heating the air beforeit enters the purifying apparatus.

2. An apparatus for extractingoxygen from air comprising a furnace, avessel 'in the furnace containing material to absorb oxygen, apurifyingapparatus, a pump, pipe connections between the pump and thevessel, connections between the pump and the purifying apparatus, pipeconnections from the vessel to the purifying apparatus, valves in theconnections, the connections between the vessel and the purifyingapparatus being formed into a coil above the vessel to receive the wasteheat therefrom, a tank for receiving oxygen, connections from the pumpto the tank, and means for conducting air from the atmosphere to thepurifying apparatus, the said conducting means passing through thefurnace for heating the air before it enters the purifying apparatus.

3. An apparatus for extracting oxygen from air comprising a furnace, avessel in the furnace, the vessel having an opening for the insertion ofmaterial, the vessel being elliptical in cross-section, a purifyingapparatus, a pump, connections between the pump and the vessel,connections between the pump and the purifying apparatus, pipeconnections from the vessel to the purifying apparatus, a tank forreceiving oxygen, con-- nections fromthe pump to the tank, and means forconducting air from the'atmosphere to the purifying apparatus, the saidconducting means passing through the furnacefor heating the air beforeit enters the purifying apparatus. v

4:, An apparatus for extracting oxygen from air'comprising a furnace, avessel in the furnace, the vessel having a substantially broad and flatshape, the vessel having an opening on one end for the insertion ofmaterial, a closure for the opening, tubes passing through the vessel topermit the passage of heat, a purifying apparatus, a pump, connectionsbetween the pump and the vessel, connections between the pump and thepurifying apparatus, pipe connections from the vessel to the purifyingapparatus, a tank for receiving oxygen, connections from the pump to thetank, and means for conducting air from the atmosphere to the purifyingapparatus, the said conducting means passing through the furnace forheating the air before it enters the purifying apparatus.

5. An apparatus for extracting oxygen from air comprising a furnace, avesselm the furnace, the vessel having a substantially broad and fiatshape, the vessel having an opening on one end for the insertion ofmaterial, aclosu're for the opening, tubes passing through the vessel topermit the passage of heat, a tube for the receptionof a pyrometer, apyrometer in said vessel, an indicator for the pyrometer, a purifyingapparatus, a pump, connections between the pump and the vessel,connections and the purifying apparatus, pipe-conned tions from thevessel to the-purifying apparatus, a tank for receiving oxygen,connections-from the pump to the tank, and means for conducting air fromthe atmos-' phere to the purifying apparatus, the said conducting meanspassingthrough the furnace for heating the-air before it'enters thepurifying apparatus.

6. In an apparatus for extracting oxygen from air, a vessel forcontaining material for absorbing oxygen of a substantially oblong shapeand elliptical in cross-section having connections at opposite sides ofits opposite ends, thevessel having an opening for the insertion ofmaterial into the vessel, a closure for the opening, and tie-boltsconnecting the sides of the vessel.

7. In an apparatus for extracting oxygen from air, a vessel of asubstantially oblong shape and elliptical in cross-section havingconnections at opposite sides of its opposite ends, an'opening for theinsertion of ma- 'terial in the vessel, a closure for theopening,

tie-bolts connecting the sides of the vessel, the vessel having itssides perforated in line, and pipes connecting the perforations on opposite sides to form passages for heat.

8. An apparatus for extracting oxygen from air comprising a furnace, avessel in the furnace containing material to absorb oxygen, a purifyingapparatus, a pump, pipe connections between the pump and the vessel,connections betweenthe pump and the purifying apparatus, pipeconnections from the vessel to the purifying apparatus, valves in theconnections, a gasometer, pipe connections from the gasometer to thepump, a tankfor receiving oxygen, connections from the ump to the tank,and means for conducting air from fying apparatus, the said conductingmeans passing through the furnace for heating the air before it entersthe purifying apparatus.

9. An apparatus for extracting oxygen from air comprising a furnace, avessel in the furnace containing material to absorb oxygen, a purifyingapparatus, a pump, pipe connections between the pump and the vessel,connections between the pump and the purifying apparatus, pipeconnections from the vessel to the urifying apparatus passing throughthe furnace whereby. they are subjected to heat, valves in theconnections, the connections between the vessel purifying apparatusbeing formed into a coil above the vessel to receive the waste heattherefrom, a tank for receiving oxygen,

between the pump the atmosphere to the puri and the connections frem thepump (:6 the tank, and

' have hereunto set my hand this 13th day- 0f means 'for conducting airfrom the atmosfy 1 d July 1909. phere to the puri ing apparatus h e sai1 w; conducting means passin through the-fur- GEORGE JON 5 nace forheating the air efore itenters the Witnesses: purifying apparatus.

' WM. H. CAMFIELB, In test1mony,that I claim the foregoing, I E. A,PELL.

